ASUS TUF B450M-PRO GAMING AMD B450 mATX gaming Motherboard (ASUS TUF B450M-PRO GAMING) - AMD AM4 Socket for 3rd/2nd/1st Gen AMD Ryzen™/2nd and 1st Gen AMD Ryzen™ with Radeon™ Vega Graphics/Athlon™ with Radeon™ Vega Graphics Processors, Memory: 4x Dual Channel DDR4 DIMM Slot, Max. 128GB, DDR4 4400MHz, Expansion Slots: 1 x PCIe 3.0/2.0 x16, 1 x PCIe 3.0/2.0 x16, 1 x PCIe 3.0/2.0 x16, 1 x PCIe 2.0 x16, 1 x PCIe 2.0 x1., Storage: 1 x M.2 Socket 3, 1 x M.2 Socket 3, 2 x SATA 6Gb/s port(s), 1 x M.2 Socket 3, 4 x SATA 6Gb/s port(s).2 x USB 3.1 Gen 1(2@back), 1 x USB 3.1 Gen 1(1@back, USB Type-CTM), 1 x USB 3.1 Gen 2(1@back), 2 x USB 3.1 Gen 1(2@front), 6 x USB 2.0 (2@back, 4@front), Operating System: Windows 10 64-bit, Windows 7 64-bit, Form Factor: 9.6 inch x 9.6 inch ( 24.4 cm x 24.4 cm ), Onboard VGA Output Available: 1x HDMI + 1x DP